TOP TEN HEALTH INSURANCE GROUPS BY DIRECT PREMIUMS WRITTEN, 2010 (1)

($ billions)

Rank Group Direct premiums written Market share
1 WellPoint Inc.  $42.2 10.7%
2 UnitedHealth Group Inc.  41.1 10.4
3 Health Care Services Corporation  20.2 5.1
4 Humana Inc.  13.2 3.3
5 Highmark Inc.  11.6 2.9
6 Aetna Inc.  10.0 2.5
7 Coventry Health Care Inc.  9.8 2.5
8 EmblemHealth Inc.  9.7 2.4
9 Kaiser Foundation Health Plan Inc.  9.5 2.4
10 Independence Blue Cross  9.3 2.4

(1) Based on health insurer annual statement data. Does not include health insurance data from the property/casualty and life/health annual statements.

Source: SNL Financial LC.